70 lines
1.8 KiB
Markdown
70 lines
1.8 KiB
Markdown
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# Pinning Versions
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## Old Version
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If you want to test rolling updates and upgrades to a new minor version, check out the *e90* sample:
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This sample installs version 9.0.1400 for testing. Because cluster node discovery changed with a newer jGroups version in nscale, the chart detects the older version and enables the legacy discovery mechanism so the Pod can find its peers on versions prior to 9.1.1200.
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```
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helm install \
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--values samples/empty.yaml \
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--values samples/demo.yaml \
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--values versions/9.0.1400.yaml \
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sample-e90 nplus/nplus-instance
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```
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## New Version Sample
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Some nscale versions are license compatible, meaning a 9.1 license file can also run nscale 9.0 software. But that is not always the case.
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So you may need to set individual licenses per instance:
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```
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kubectl create secret generic nscale-license-e10 \
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--from-file=license.xml=license10.xml
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```
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Check that the license has been created:
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```
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# kubectl get secret | grep license
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nscale-license Opaque 1 7d22h
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nscale-license-e10 Opaque 1 17s
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```
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Now install the instance:
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```
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helm upgrade -i \
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--values samples/empty.yaml \
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--values samples/demo.yaml \
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--values versions/10.0.yaml \
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--set global.license=nscale-license-e10 \
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sample-e10 nplus/nplus-instance
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```
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## Probes
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Older versions might not work with the newer/current probes and may not start even though they are actually running. You can override the probes to match older versions, for example:
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```
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nappl:
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probes:
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livenessProbe:
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httpGet:
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path: /index.html
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port: 8080
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initialDelaySeconds: 60
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timeoutSeconds: 3
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failureThreshold: 5
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readinessProbe:
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httpGet:
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path: /index.html
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port: 8080
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initialDelaySeconds: 60
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timeoutSeconds: 3
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failureThreshold: 5
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```
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